/*
* IOCTL request handler to set/reset WPA IE.
*
* The supplied WPA IE is treated as a opaque buffer. Only the first field
* is checked to determine WPA version. If buffer length is zero, the existing
* WPA IE is reset.
*/
static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
u8 *ie_data_ptr, u16 ie_len)
{
if (ie_len) {
if (ie_len > sizeof(priv->wpa_ie)) {
mwifiex_dbg(priv->adapter, ERROR,
"failed to copy WPA IE, too big\n");
return -1;
}
memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
priv->wpa_ie_len = ie_len;
mwifiex_dbg(priv->adapter, CMD,
"cmd: Set Wpa_ie_len=%d IE=%#x\n",
priv->wpa_ie_len, priv->wpa_ie[0]);
if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
priv->sec_info.wpa_enabled = true;
} else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
priv->sec_info.wpa2_enabled = true;
} else {
priv->sec_info.wpa_enabled = false;
priv->sec_info.wpa2_enabled = false;
}
} else {
memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
priv->wpa_ie_len = 0;
mwifiex_dbg(priv->adapter, INFO,
"info: reset wpa_ie_len=%d IE=%#x\n",
priv->wpa_ie_len, priv->wpa_ie[0]);
priv->sec_info.wpa_enabled = false;
priv->sec_info.wpa2_enabled = false;
}
return 0;
}
/*
* IOCTL request handler to set/get generic IE.
*
* In addition to various generic IEs, this function can also be
* used to set the ARP filter.
*/
static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
struct mwifiex_ds_misc_gen_ie *gen_ie,
u16 action)
{
struct mwifiex_adapter *adapter = priv->adapter;
switch (gen_ie->type) {
case MWIFIEX_IE_TYPE_GEN_IE:
if (action == HostCmd_ACT_GEN_GET) {
gen_ie->len = priv->wpa_ie_len;
memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
} else {
mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
(u16) gen_ie->len);
}
break;
case MWIFIEX_IE_TYPE_ARP_FILTER:
memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
adapter->arp_filter_size = 0;
mwifiex_dbg(adapter, ERROR,
"invalid ARP filter size\n");
return -1;
} else {
memcpy(adapter->arp_filter, gen_ie->ie_data,
gen_ie->len);
adapter->arp_filter_size = gen_ie->len;
}
break;
default:
mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
return -1;
}
return 0;
}
/*
* IOCTL request handler to set/reset WPS IE.
*
* The supplied WPS IE is treated as a opaque buffer. Only the first field
* is checked to internally enable WPS. If buffer length is zero, the existing
* WPS IE is reset.
*/
static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
u8 *ie_data_ptr, u16 ie_len)
{
if (ie_len) {
if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
mwifiex_dbg(priv->adapter, ERROR,
"info: failed to copy WPS IE, too big\n");
return -1;
}
priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
if (!priv->wps_ie)
return -ENOMEM;
memcpy(priv->wps_ie, ie_data_ptr, ie_len);
priv->wps_ie_len = ie_len;
mwifiex_dbg(priv->adapter, CMD,
"cmd: Set wps_ie_len=%d IE=%#x\n",
priv->wps_ie_len, priv->wps_ie[0]);
} else {
kfree(priv->wps_ie);
priv->wps_ie_len = ie_len;
mwifiex_dbg(priv->adapter, INFO,
"info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
}
return 0;
}
/* This function prepares channel report request command to FW for
* starting radar detection.
*/
int mwifiex_cmd_issue_chan_report_request(struct mwifiex_private *priv,
struct host_cmd_ds_command *cmd,
void *data_buf)
{
struct host_cmd_ds_chan_rpt_req *cr_req = &cmd->params.chan_rpt_req;
struct mwifiex_radar_params *radar_params = (void *)data_buf;
cmd->command = cpu_to_le16(HostCmd_CMD_CHAN_REPORT_REQUEST);
cmd->size = cpu_to_le16(S_DS_GEN);
le16_unaligned_add_cpu(&cmd->size,
sizeof(struct host_cmd_ds_chan_rpt_req));
cr_req->chan_desc.start_freq = cpu_to_le16(MWIFIEX_A_BAND_START_FREQ);
cr_req->chan_desc.chan_num = radar_params->chandef->chan->hw_value;
cr_req->chan_desc.chan_width = radar_params->chandef->width;
cr_req->msec_dwell_time = cpu_to_le32(radar_params->cac_time_ms);
if (radar_params->cac_time_ms)
mwifiex_dbg(priv->adapter, MSG,
"11h: issuing DFS Radar check for channel=%d\n",
radar_params->chandef->chan->hw_value);
else
mwifiex_dbg(priv->adapter, MSG, "cancelling CAC\n");
return 0;
}
/*
* This function allocates buffers for members of the adapter
* structure.
*
* The memory allocated includes scan table, command buffers, and
* sleep confirm command buffer. In addition, the queues are
* also initialized.
*/
static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter)
{
int ret;
/* Allocate command buffer */
ret = mwifiex_alloc_cmd_buffer(adapter);
if (ret) {
mwifiex_dbg(adapter, ERROR,
"%s: failed to alloc cmd buffer\n",
__func__);
return -1;
}
adapter->sleep_cfm =
dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
+ INTF_HEADER_LEN);
if (!adapter->sleep_cfm) {
mwifiex_dbg(adapter, ERROR,
"%s: failed to alloc sleep cfm\t"
" cmd buffer\n", __func__);
return -1;
}
skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN);
return 0;
}
/*
* This function handles the command response of set rf antenna
*/
static int mwifiex_ret_rf_antenna(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct host_cmd_ds_rf_ant_mimo *ant_mimo = &resp->params.ant_mimo;
struct host_cmd_ds_rf_ant_siso *ant_siso = &resp->params.ant_siso;
struct mwifiex_adapter *adapter = priv->adapter;
if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) {
priv->tx_ant = le16_to_cpu(ant_mimo->tx_ant_mode);
priv->rx_ant = le16_to_cpu(ant_mimo->rx_ant_mode);
mwifiex_dbg(adapter, INFO,
"RF_ANT_RESP: Tx action = 0x%x, Tx Mode = 0x%04x\t"
"Rx action = 0x%x, Rx Mode = 0x%04x\n",
le16_to_cpu(ant_mimo->action_tx),
le16_to_cpu(ant_mimo->tx_ant_mode),
le16_to_cpu(ant_mimo->action_rx),
le16_to_cpu(ant_mimo->rx_ant_mode));
} else {
priv->tx_ant = le16_to_cpu(ant_siso->ant_mode);
priv->rx_ant = le16_to_cpu(ant_siso->ant_mode);
mwifiex_dbg(adapter, INFO,
"RF_ANT_RESP: action = 0x%x, Mode = 0x%04x\n",
le16_to_cpu(ant_siso->action),
le16_to_cpu(ant_siso->ant_mode));
}
return 0;
}
/* This is work queue function for channel switch handling.
* This function takes care of updating new channel definitin to
* bss config structure, restart AP and indicate channel switch success
* to cfg80211.
*/
void mwifiex_dfs_chan_sw_work_queue(struct work_struct *work)
{
struct mwifiex_uap_bss_param *bss_cfg;
struct delayed_work *delayed_work = to_delayed_work(work);
struct mwifiex_private *priv =
container_of(delayed_work, struct mwifiex_private,
dfs_chan_sw_work);
bss_cfg = &priv->bss_cfg;
if (!bss_cfg->beacon_period) {
mwifiex_dbg(priv->adapter, ERROR,
"channel switch: AP already stopped\n");
return;
}
mwifiex_uap_set_channel(priv, bss_cfg, priv->dfs_chandef);
if (mwifiex_config_start_uap(priv, bss_cfg)) {
mwifiex_dbg(priv->adapter, ERROR,
"Failed to start AP after channel switch\n");
return;
}
mwifiex_dbg(priv->adapter, MSG,
"indicating channel switch completion to kernel\n");
cfg80211_ch_switch_notify(priv->netdev, &priv->dfs_chandef);
}
/*
* IOCTL request handler to set/reset WAPI IE.
*
* The supplied WAPI IE is treated as a opaque buffer. Only the first field
* is checked to internally enable WAPI. If buffer length is zero, the existing
* WAPI IE is reset.
*/
static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
u8 *ie_data_ptr, u16 ie_len)
{
if (ie_len) {
if (ie_len > sizeof(priv->wapi_ie)) {
mwifiex_dbg(priv->adapter, ERROR,
"info: failed to copy WAPI IE, too big\n");
return -1;
}
memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
priv->wapi_ie_len = ie_len;
mwifiex_dbg(priv->adapter, CMD,
"cmd: Set wapi_ie_len=%d IE=%#x\n",
priv->wapi_ie_len, priv->wapi_ie[0]);
if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
priv->sec_info.wapi_enabled = true;
} else {
memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
priv->wapi_ie_len = ie_len;
mwifiex_dbg(priv->adapter, INFO,
"info: Reset wapi_ie_len=%d IE=%#x\n",
priv->wapi_ie_len, priv->wapi_ie[0]);
priv->sec_info.wapi_enabled = false;
}
return 0;
}
/* Kernel needs to suspend all functions separately. Therefore all
* registered functions must have drivers with suspend and resume
* methods. Failing that the kernel simply removes the whole card.
*
* If already not suspended, this function allocates and sends a
* 'host sleep activate' request to the firmware and turns off the traffic.
*/
static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
struct usb_tx_data_port *port;
int i, j;
/* Might still be loading firmware */
wait_for_completion(&card->fw_done);
adapter = card->adapter;
if (!adapter) {
dev_err(&intf->dev, "card is not valid\n");
return 0;
}
if (unlikely(adapter->is_suspended))
mwifiex_dbg(adapter, WARN,
"Device already suspended\n");
/* Enable the Host Sleep */
if (!mwifiex_enable_hs(adapter)) {
mwifiex_dbg(adapter, ERROR,
"cmd: failed to suspend\n");
adapter->hs_enabling = false;
return -EFAULT;
}
/* 'is_suspended' flag indicates device is suspended.
* It must be set here before the usb_kill_urb() calls. Reason
* is in the complete handlers, urb->status(= -ENOENT) and
* this flag is used in combination to distinguish between a
* 'suspended' state and a 'disconnect' one.
*/
adapter->is_suspended = true;
adapter->hs_enabling = false;
if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
usb_kill_urb(card->rx_cmd.urb);
if (atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
if (card->rx_data_list[i].urb)
usb_kill_urb(card->rx_data_list[i].urb);
for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
port = &card->port[i];
for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
if (port->tx_data_list[j].urb)
usb_kill_urb(port->tx_data_list[j].urb);
}
}
if (card->tx_cmd.urb)
usb_kill_urb(card->tx_cmd.urb);
return 0;
}
static void
mwifiex_fw_dump_info_event(struct mwifiex_private *priv,
struct sk_buff *event_skb)
{
struct mwifiex_adapter *adapter = priv->adapter;
struct mwifiex_fw_dump_header *fw_dump_hdr =
(void *)adapter->event_body;
if (adapter->iface_type != MWIFIEX_USB) {
mwifiex_dbg(adapter, MSG,
"event is not on usb interface, ignore it\n");
return;
}
if (!adapter->devdump_data) {
/* When receive the first event, allocate device dump
* buffer, dump driver info.
*/
adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE);
if (!adapter->devdump_data) {
mwifiex_dbg(adapter, ERROR,
"vzalloc devdump data failure!\n");
return;
}
mwifiex_drv_info_dump(adapter);
/* If no proceeded event arrive in 10s, upload device
* dump data, this will be useful if the end of
* transmission event get lost, in this cornel case,
* user would still get partial of the dump.
*/
mod_timer(&adapter->devdump_timer,
jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
}
/* Overflow check */
if (adapter->devdump_len + event_skb->len >= MWIFIEX_FW_DUMP_SIZE)
goto upload_dump;
memmove(adapter->devdump_data + adapter->devdump_len,
adapter->event_skb->data, event_skb->len);
adapter->devdump_len += event_skb->len;
if (le16_to_cpu(fw_dump_hdr->type == FW_DUMP_INFO_ENDED)) {
mwifiex_dbg(adapter, MSG,
"receive end of transmission flag event!\n");
goto upload_dump;
}
return;
upload_dump:
del_timer_sync(&adapter->devdump_timer);
mwifiex_upload_device_dump(adapter);
}
/*
* This function handles the command response error case.
*
* For scan response error, the function cancels all the pending
* scan commands and generates an event to inform the applications
* of the scan completion.
*
* For Power Save command failure, we do not retry enter PS
* command in case of Ad-hoc mode.
*
* For all other response errors, the current command buffer is freed
* and returned to the free command queue.
*/
static void
mwifiex_process_cmdresp_error(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct mwifiex_adapter *adapter = priv->adapter;
struct host_cmd_ds_802_11_ps_mode_enh *pm;
unsigned long flags;
mwifiex_dbg(adapter, ERROR,
"CMD_RESP: cmd %#x error, result=%#x\n",
resp->command, resp->result);
if (adapter->curr_cmd->wait_q_enabled)
adapter->cmd_wait_q.status = -1;
switch (le16_to_cpu(resp->command)) {
case HostCmd_CMD_802_11_PS_MODE_ENH:
pm = &resp->params.psmode_enh;
mwifiex_dbg(adapter, ERROR,
"PS_MODE_ENH cmd failed: result=0x%x action=0x%X\n",
resp->result, le16_to_cpu(pm->action));
/* We do not re-try enter-ps command in ad-hoc mode. */
if (le16_to_cpu(pm->action) == EN_AUTO_PS &&
(le16_to_cpu(pm->params.ps_bitmap) & BITMAP_STA_PS) &&
priv->bss_mode == NL80211_IFTYPE_ADHOC)
adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
break;
case HostCmd_CMD_802_11_SCAN:
case HostCmd_CMD_802_11_SCAN_EXT:
mwifiex_cancel_pending_scan_cmd(adapter);
spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
adapter->scan_processing = false;
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
break;
case HostCmd_CMD_MAC_CONTROL:
break;
case HostCmd_CMD_SDIO_SP_RX_AGGR_CFG:
mwifiex_dbg(adapter, MSG,
"SDIO RX single-port aggregation Not support\n");
break;
default:
break;
}
/* Handling errors here */
mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
adapter->curr_cmd = NULL;
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
}
static int mwifiex_process_country_ie(struct mwifiex_private *priv,
struct cfg80211_bss *bss)
{
const u8 *country_ie;
u8 country_ie_len;
struct mwifiex_802_11d_domain_reg *domain_info =
&priv->adapter->domain_reg;
rcu_read_lock();
country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
if (!country_ie) {
rcu_read_unlock();
return 0;
}
country_ie_len = country_ie[1];
if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
rcu_read_unlock();
return 0;
}
if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
rcu_read_unlock();
mwifiex_dbg(priv->adapter, INFO,
"11D: skip setting domain info in FW\n");
return 0;
}
memcpy(priv->adapter->country_code, &country_ie[2], 2);
domain_info->country_code[0] = country_ie[2];
domain_info->country_code[1] = country_ie[3];
domain_info->country_code[2] = ' ';
country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
domain_info->no_of_triplet =
country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
memcpy((u8 *)domain_info->triplet,
&country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
rcu_read_unlock();
if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
HostCmd_ACT_GEN_SET, 0, NULL, false)) {
mwifiex_dbg(priv->adapter, ERROR,
"11D: setting domain info in FW fail\n");
return -1;
}
mwifiex_dnld_txpwr_table(priv);
return 0;
}
/*
* This function downloads the firmware to the card.
*
* The actual download is preceded by two sanity checks -
* - Check if firmware is already running
* - Check if the interface is the winner to download the firmware
*
* ...and followed by another -
* - Check if the firmware is downloaded successfully
*
* After download is successfully completed, the host interrupts are enabled.
*/
int mwifiex_dnld_fw(struct mwifiex_adapter *adapter,
struct mwifiex_fw_image *pmfw)
{
int ret;
u32 poll_num = 1;
if (adapter->if_ops.check_fw_status) {
/* check if firmware is already running */
ret = adapter->if_ops.check_fw_status(adapter, poll_num);
if (!ret) {
mwifiex_dbg(adapter, MSG,
"WLAN FW already running! Skip FW dnld\n");
return 0;
}
}
/* check if we are the winner for downloading FW */
if (adapter->if_ops.check_winner_status) {
adapter->winner = 0;
ret = adapter->if_ops.check_winner_status(adapter);
poll_num = MAX_FIRMWARE_POLL_TRIES;
if (ret) {
mwifiex_dbg(adapter, MSG,
"WLAN read winner status failed!\n");
return ret;
}
if (!adapter->winner) {
mwifiex_dbg(adapter, MSG,
"WLAN is not the winner! Skip FW dnld\n");
goto poll_fw;
}
}
if (pmfw) {
/* Download firmware with helper */
ret = adapter->if_ops.prog_fw(adapter, pmfw);
if (ret) {
mwifiex_dbg(adapter, ERROR,
"prog_fw failed ret=%#x\n", ret);
return ret;
}
}
poll_fw:
/* Check if the firmware is downloaded successfully or not */
ret = adapter->if_ops.check_fw_status(adapter, poll_num);
if (ret)
mwifiex_dbg(adapter, ERROR,
"FW failed to be active in time\n");
return ret;
}
/* This function is to abort ongoing CAC upon stopping AP operations
* or during unload.
*/
void mwifiex_abort_cac(struct mwifiex_private *priv)
{
if (priv->wdev.cac_started) {
if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef))
mwifiex_dbg(priv->adapter, ERROR,
"failed to stop CAC in FW\n");
mwifiex_dbg(priv->adapter, MSG,
"Aborting delayed work for CAC.\n");
cancel_delayed_work_sync(&priv->dfs_cac_work);
cfg80211_cac_event(priv->netdev, &priv->dfs_chandef,
NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
}
}
/*
* This function handles the command response of set/get Tx power
* configurations.
*
* Handling includes changing the header fields into CPU format
* and saving the current Tx power level in driver.
*/
static int mwifiex_ret_tx_power_cfg(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct mwifiex_adapter *adapter = priv->adapter;
struct host_cmd_ds_txpwr_cfg *txp_cfg = &resp->params.txp_cfg;
struct mwifiex_types_power_group *pg_tlv_hdr;
struct mwifiex_power_group *pg;
u16 action = le16_to_cpu(txp_cfg->action);
u16 tlv_buf_left;
pg_tlv_hdr = (struct mwifiex_types_power_group *)
((u8 *)txp_cfg +
sizeof(struct host_cmd_ds_txpwr_cfg));
pg = (struct mwifiex_power_group *)
((u8 *)pg_tlv_hdr +
sizeof(struct mwifiex_types_power_group));
tlv_buf_left = le16_to_cpu(resp->size) - S_DS_GEN - sizeof(*txp_cfg);
if (tlv_buf_left <
le16_to_cpu(pg_tlv_hdr->length) + sizeof(*pg_tlv_hdr))
return 0;
switch (action) {
case HostCmd_ACT_GEN_GET:
if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
mwifiex_get_power_level(priv, pg_tlv_hdr);
priv->tx_power_level = (u16) pg->power_min;
break;
case HostCmd_ACT_GEN_SET:
if (!le32_to_cpu(txp_cfg->mode))
break;
if (pg->power_max == pg->power_min)
priv->tx_power_level = (u16) pg->power_min;
break;
default:
mwifiex_dbg(adapter, ERROR,
"CMD_RESP: unknown cmd action %d\n",
action);
return 0;
}
mwifiex_dbg(adapter, INFO,
"info: Current TxPower Level = %d, Max Power=%d, Min Power=%d\n",
priv->tx_power_level, priv->max_tx_power_level,
priv->min_tx_power_level);
return 0;
}
static int mwifiex_ret_tdls_oper(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct host_cmd_ds_tdls_oper *cmd_tdls_oper = &resp->params.tdls_oper;
u16 reason = le16_to_cpu(cmd_tdls_oper->reason);
u16 action = le16_to_cpu(cmd_tdls_oper->tdls_action);
struct mwifiex_sta_node *node =
mwifiex_get_sta_entry(priv, cmd_tdls_oper->peer_mac);
switch (action) {
case ACT_TDLS_DELETE:
if (reason) {
if (!node || reason == TDLS_ERR_LINK_NONEXISTENT)
mwifiex_dbg(priv->adapter, MSG,
"TDLS link delete for %pM failed: reason %d\n",
cmd_tdls_oper->peer_mac, reason);
else
mwifiex_dbg(priv->adapter, ERROR,
"TDLS link delete for %pM failed: reason %d\n",
cmd_tdls_oper->peer_mac, reason);
} else {
mwifiex_dbg(priv->adapter, MSG,
"TDLS link delete for %pM successful\n",
cmd_tdls_oper->peer_mac);
}
break;
case ACT_TDLS_CREATE:
if (reason) {
mwifiex_dbg(priv->adapter, ERROR,
"TDLS link creation for %pM failed: reason %d",
cmd_tdls_oper->peer_mac, reason);
if (node && reason != TDLS_ERR_LINK_EXISTS)
node->tdls_status = TDLS_SETUP_FAILURE;
} else {
mwifiex_dbg(priv->adapter, MSG,
"TDLS link creation for %pM successful",
cmd_tdls_oper->peer_mac);
}
break;
case ACT_TDLS_CONFIG:
if (reason) {
mwifiex_dbg(priv->adapter, ERROR,
"TDLS link config for %pM failed, reason %d\n",
cmd_tdls_oper->peer_mac, reason);
if (node)
node->tdls_status = TDLS_SETUP_FAILURE;
} else {
mwifiex_dbg(priv->adapter, MSG,
"TDLS link config for %pM successful\n",
cmd_tdls_oper->peer_mac);
}
break;
default:
mwifiex_dbg(priv->adapter, ERROR,
"Unknown TDLS command action response %d", action);
return -1;
}
return 0;
}
/*
* This function handles the command response of set/get v2 key material.
*
* Handling includes updating the driver parameters to reflect the
* changes.
*/
static int mwifiex_ret_802_11_key_material_v2(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
struct host_cmd_ds_802_11_key_material_v2 *key_v2;
__le16 len;
key_v2 = &resp->params.key_material_v2;
if (le16_to_cpu(key_v2->action) == HostCmd_ACT_GEN_SET) {
if ((le16_to_cpu(key_v2->key_param_set.key_info) & KEY_MCAST)) {
mwifiex_dbg(priv->adapter, INFO, "info: key: GTK is set\n");
priv->wpa_is_gtk_set = true;
priv->scan_block = false;
priv->port_open = true;
}
}
if (key_v2->key_param_set.key_type != KEY_TYPE_ID_AES)
return 0;
memset(priv->aes_key_v2.key_param_set.key_params.aes.key, 0,
WLAN_KEY_LEN_CCMP);
priv->aes_key_v2.key_param_set.key_params.aes.key_len =
key_v2->key_param_set.key_params.aes.key_len;
len = priv->aes_key_v2.key_param_set.key_params.aes.key_len;
memcpy(priv->aes_key_v2.key_param_set.key_params.aes.key,
key_v2->key_param_set.key_params.aes.key, le16_to_cpu(len));
return 0;
}
static void mwifiex_usb_disconnect(struct usb_interface *intf)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
wait_for_completion(&card->fw_done);
adapter = card->adapter;
if (!adapter || !adapter->priv_num)
return;
if (card->udev->state != USB_STATE_NOTATTACHED && !adapter->mfg_mode) {
mwifiex_deauthenticate_all(adapter);
mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_ANY),
MWIFIEX_FUNC_SHUTDOWN);
}
mwifiex_usb_free(card);
mwifiex_dbg(adapter, FATAL,
"%s: removing card\n", __func__);
mwifiex_remove_card(adapter);
usb_put_dev(interface_to_usbdev(intf));
}
static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv,
struct mwifiex_ie_types_header *tlv)
{
struct mwifiex_tx_pause_tlv *tp;
struct mwifiex_sta_node *sta_ptr;
unsigned long flags;
tp = (void *)tlv;
mwifiex_dbg(priv->adapter, EVENT,
"uap tx_pause: %pM pause=%d, pkts=%d\n",
tp->peermac, tp->tx_pause,
tp->pkt_cnt);
if (ether_addr_equal(tp->peermac, priv->netdev->dev_addr)) {
if (tp->tx_pause)
priv->port_open = false;
else
priv->port_open = true;
} else if (is_multicast_ether_addr(tp->peermac)) {
mwifiex_update_ralist_tx_pause(priv, tp->peermac, tp->tx_pause);
} else {
spin_lock_irqsave(&priv->sta_list_spinlock, flags);
sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
sta_ptr->tx_pause = tp->tx_pause;
mwifiex_update_ralist_tx_pause(priv, tp->peermac,
tp->tx_pause);
}
spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
}
}
int
mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
struct ieee80211_channel *chan,
unsigned int duration)
{
struct host_cmd_ds_remain_on_chan roc_cfg;
u8 sc;
memset(&roc_cfg, 0, sizeof(roc_cfg));
roc_cfg.action = cpu_to_le16(action);
if (action == HostCmd_ACT_GEN_SET) {
roc_cfg.band_cfg = chan->band;
sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
roc_cfg.band_cfg |= (sc << 2);
roc_cfg.channel =
ieee80211_frequency_to_channel(chan->center_freq);
roc_cfg.duration = cpu_to_le32(duration);
}
if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
action, 0, &roc_cfg, true)) {
mwifiex_dbg(priv->adapter, ERROR,
"failed to remain on channel\n");
return -1;
}
return roc_cfg.status;
}
/* Proc hscfg file write handler
* This function can be used to configure the host sleep parameters.
*/
static ssize_t
mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct mwifiex_private *priv = (void *)file->private_data;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1);
int ret, arg_num;
struct mwifiex_ds_hs_cfg hscfg;
int conditions = HS_CFG_COND_DEF;
u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
if (!buf)
return -ENOMEM;
if (copy_from_user(buf, ubuf, buf_size)) {
ret = -EFAULT;
goto done;
}
arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
if (arg_num > 3) {
mwifiex_dbg(priv->adapter, ERROR,
"Too many arguments\n");
ret = -EINVAL;
goto done;
}
if (arg_num >= 1 && arg_num < 3)
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
MWIFIEX_SYNC_CMD, &hscfg);
if (arg_num) {
if (conditions == HS_CFG_CANCEL) {
mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
ret = count;
goto done;
}
hscfg.conditions = conditions;
}
if (arg_num >= 2)
hscfg.gpio = gpio;
if (arg_num == 3)
hscfg.gap = gap;
hscfg.is_invoke_hostcmd = false;
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
MWIFIEX_SYNC_CMD, &hscfg);
mwifiex_enable_hs(priv->adapter);
priv->adapter->hs_enabling = false;
ret = count;
done:
free_page(addr);
return ret;
}
/*
* Add buffer into wmm tx queue and queue work to transmit it.
*/
int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
{
struct netdev_queue *txq;
int index = mwifiex_1d_to_wmm_queue[skb->priority];
if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) {
txq = netdev_get_tx_queue(priv->netdev, index);
if (!netif_tx_queue_stopped(txq)) {
netif_tx_stop_queue(txq);
mwifiex_dbg(priv->adapter, DATA,
"stop queue: %d\n", index);
}
}
if (mwifiex_bypass_tx_queue(priv, skb)) {
atomic_inc(&priv->adapter->tx_pending);
atomic_inc(&priv->adapter->bypass_tx_pending);
mwifiex_wmm_add_buf_bypass_txqueue(priv, skb);
} else {
atomic_inc(&priv->adapter->tx_pending);
mwifiex_wmm_add_buf_txqueue(priv, skb);
}
mwifiex_queue_main_work(priv->adapter);
return 0;
}
/* This function prepares the AP specific commands before sending them
* to the firmware.
* This is a generic function which calls specific command preparation
* routines based upon the command number.
*/
int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
u16 cmd_action, u32 type,
void *data_buf, void *cmd_buf)
{
struct host_cmd_ds_command *cmd = cmd_buf;
switch (cmd_no) {
case HostCmd_CMD_UAP_SYS_CONFIG:
if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
return -1;
break;
case HostCmd_CMD_UAP_BSS_START:
case HostCmd_CMD_UAP_BSS_STOP:
case HOST_CMD_APCMD_SYS_RESET:
case HOST_CMD_APCMD_STA_LIST:
cmd->command = cpu_to_le16(cmd_no);
cmd->size = cpu_to_le16(S_DS_GEN);
break;
case HostCmd_CMD_UAP_STA_DEAUTH:
if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
return -1;
break;
case HostCmd_CMD_CHAN_REPORT_REQUEST:
if (mwifiex_cmd_issue_chan_report_request(priv, cmd_buf,
data_buf))
return -1;
break;
default:
mwifiex_dbg(priv->adapter, ERROR,
"PREP_CMD: unknown cmd %#x\n", cmd_no);
return -1;
}
return 0;
}
static int mwifiex_usb_construct_send_urb(struct mwifiex_adapter *adapter,
struct usb_tx_data_port *port, u8 ep,
struct urb_context *context,
struct sk_buff *skb_send)
{
struct usb_card_rec *card = adapter->card;
int ret = -EINPROGRESS;
struct urb *tx_urb;
context->adapter = adapter;
context->ep = ep;
context->skb = skb_send;
tx_urb = context->urb;
if (ep == card->tx_cmd_ep &&
card->tx_cmd_ep_type == USB_ENDPOINT_XFER_INT)
usb_fill_int_urb(tx_urb, card->udev,
usb_sndintpipe(card->udev, ep), skb_send->data,
skb_send->len, mwifiex_usb_tx_complete,
(void *)context, card->tx_cmd_interval);
else
usb_fill_bulk_urb(tx_urb, card->udev,
usb_sndbulkpipe(card->udev, ep),
skb_send->data, skb_send->len,
mwifiex_usb_tx_complete, (void *)context);
tx_urb->transfer_flags |= URB_ZERO_PACKET;
if (ep == card->tx_cmd_ep)
atomic_inc(&card->tx_cmd_urb_pending);
else
atomic_inc(&port->tx_data_urb_pending);
if (ep != card->tx_cmd_ep &&
atomic_read(&port->tx_data_urb_pending) ==
MWIFIEX_TX_DATA_URB) {
port->block_status = true;
adapter->data_sent = mwifiex_usb_data_sent(adapter);
ret = -ENOSR;
}
if (usb_submit_urb(tx_urb, GFP_ATOMIC)) {
mwifiex_dbg(adapter, ERROR,
"%s: usb_submit_urb failed\n", __func__);
if (ep == card->tx_cmd_ep) {
atomic_dec(&card->tx_cmd_urb_pending);
} else {
atomic_dec(&port->tx_data_urb_pending);
port->block_status = false;
adapter->data_sent = false;
if (port->tx_data_ix)
port->tx_data_ix--;
else
port->tx_data_ix = MWIFIEX_TX_DATA_URB;
}
ret = -1;
}
return ret;
}
/* This function handles channel report event from FW during CAC period.
* If radar is detected during CAC, driver indicates the same to cfg80211
* and also cancels ongoing delayed work.
*/
int mwifiex_11h_handle_chanrpt_ready(struct mwifiex_private *priv,
struct sk_buff *skb)
{
struct host_cmd_ds_chan_rpt_event *rpt_event;
struct mwifiex_ie_types_chan_rpt_data *rpt;
u8 *evt_buf;
u16 event_len, tlv_len;
rpt_event = (void *)(skb->data + sizeof(u32));
event_len = skb->len - (sizeof(struct host_cmd_ds_chan_rpt_event)+
sizeof(u32));
if (le32_to_cpu(rpt_event->result) != HostCmd_RESULT_OK) {
mwifiex_dbg(priv->adapter, ERROR,
"Error in channel report event\n");
return -1;
}
evt_buf = (void *)&rpt_event->tlvbuf;
while (event_len >= sizeof(struct mwifiex_ie_types_header)) {
rpt = (void *)&rpt_event->tlvbuf;
tlv_len = le16_to_cpu(rpt->header.len);
switch (le16_to_cpu(rpt->header.type)) {
case TLV_TYPE_CHANRPT_11H_BASIC:
if (rpt->map.radar) {
mwifiex_dbg(priv->adapter, MSG,
"RADAR Detected on channel %d!\n",
priv->dfs_chandef.chan->hw_value);
cancel_delayed_work_sync(&priv->dfs_cac_work);
cfg80211_cac_event(priv->netdev,
&priv->dfs_chandef,
NL80211_RADAR_DETECTED,
GFP_KERNEL);
}
break;
default:
break;
}
evt_buf += (tlv_len + sizeof(rpt->header));
event_len -= (tlv_len + sizeof(rpt->header));
}
return 0;
}
/*
* This function prepares the correct firmware command and
* issues it to set the multicast list.
*
* This function can be used to enable promiscuous mode, or enable all
* multicast packets, or to enable selective multicast.
*/
int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
struct mwifiex_multicast_list *mcast_list)
{
int ret = 0;
u16 old_pkt_filter;
old_pkt_filter = priv->curr_pkt_filter;
if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
mwifiex_dbg(priv->adapter, INFO,
"info: Enable Promiscuous mode\n");
priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
priv->curr_pkt_filter &=
~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
} else {
/* Multicast */
priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
mwifiex_dbg(priv->adapter, INFO,
"info: Enabling All Multicast!\n");
priv->curr_pkt_filter |=
HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
} else {
priv->curr_pkt_filter &=
~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
mwifiex_dbg(priv->adapter, INFO,
"info: Set multicast list=%d\n",
mcast_list->num_multicast_addr);
/* Send multicast addresses to firmware */
ret = mwifiex_send_cmd(priv,
HostCmd_CMD_MAC_MULTICAST_ADR,
HostCmd_ACT_GEN_SET, 0,
mcast_list, false);
}
}
mwifiex_dbg(priv->adapter, INFO,
"info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
old_pkt_filter, priv->curr_pkt_filter);
if (old_pkt_filter != priv->curr_pkt_filter) {
ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
HostCmd_ACT_GEN_SET,
0, &priv->curr_pkt_filter, false);
}
return ret;
}
static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size)
{
struct mwifiex_adapter *adapter = ctx->adapter;
struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
if (card->rx_cmd_ep != ctx->ep) {
ctx->skb = dev_alloc_skb(size);
if (!ctx->skb) {
mwifiex_dbg(adapter, ERROR,
"%s: dev_alloc_skb failed\n", __func__);
return -ENOMEM;
}
}
if (card->rx_cmd_ep == ctx->ep &&
card->rx_cmd_ep_type == USB_ENDPOINT_XFER_INT)
usb_fill_int_urb(ctx->urb, card->udev,
usb_rcvintpipe(card->udev, ctx->ep),
ctx->skb->data, size, mwifiex_usb_rx_complete,
(void *)ctx, card->rx_cmd_interval);
else
usb_fill_bulk_urb(ctx->urb, card->udev,
usb_rcvbulkpipe(card->udev, ctx->ep),
ctx->skb->data, size, mwifiex_usb_rx_complete,
(void *)ctx);
if (card->rx_cmd_ep == ctx->ep)
atomic_inc(&card->rx_cmd_urb_pending);
else
atomic_inc(&card->rx_data_urb_pending);
if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) {
mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n");
dev_kfree_skb_any(ctx->skb);
ctx->skb = NULL;
if (card->rx_cmd_ep == ctx->ep)
atomic_dec(&card->rx_cmd_urb_pending);
else
atomic_dec(&card->rx_data_urb_pending);
return -1;
}
return 0;
}
/*
* IOCTL request handler to set WPA key.
*
* This function prepares the correct firmware command and
* issues it, after validation checks.
*
* Current driver only supports key length of up to 32 bytes.
*
* This function can also be used to disable a currently set key.
*/
static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
struct mwifiex_ds_encrypt_key *encrypt_key)
{
int ret;
u8 remove_key = false;
struct host_cmd_ds_802_11_key_material *ibss_key;
/* Current driver only supports key length of up to 32 bytes */
if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
mwifiex_dbg(priv->adapter, ERROR,
"key length too long\n");
return -1;
}
if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
/*
* IBSS/WPA-None uses only one key (Group) for both receiving
* and sending unicast and multicast packets.
*/
/* Send the key as PTK to firmware */
encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
HostCmd_ACT_GEN_SET,
KEY_INFO_ENABLED, encrypt_key, false);
if (ret)
return ret;
ibss_key = &priv->aes_key;
memset(ibss_key, 0,
sizeof(struct host_cmd_ds_802_11_key_material));
/* Copy the key in the driver */
memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
encrypt_key->key_len);
memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
sizeof(ibss_key->key_param_set.key_len));
ibss_key->key_param_set.key_type_id
= cpu_to_le16(KEY_TYPE_ID_TKIP);
ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
/* Send the key as GTK to firmware */
encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
}
if (!encrypt_key->key_index)
encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
if (remove_key)
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
HostCmd_ACT_GEN_SET,
!KEY_INFO_ENABLED, encrypt_key, true);
else
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
HostCmd_ACT_GEN_SET,
KEY_INFO_ENABLED, encrypt_key, true);
return ret;
}
/*
* This function handles the command response of set/get SNMP
* MIB parameters.
*
* Handling includes changing the header fields into CPU format
* and saving the parameter in driver.
*
* The following parameters are supported -
* - Fragmentation threshold
* - RTS threshold
* - Short retry limit
*/
static int mwifiex_ret_802_11_snmp_mib(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp,
u32 *data_buf)
{
struct host_cmd_ds_802_11_snmp_mib *smib = &resp->params.smib;
u16 oid = le16_to_cpu(smib->oid);
u16 query_type = le16_to_cpu(smib->query_type);
u32 ul_temp;
mwifiex_dbg(priv->adapter, INFO,
"info: SNMP_RESP: oid value = %#x,\t"
"query_type = %#x, buf size = %#x\n",
oid, query_type, le16_to_cpu(smib->buf_size));
if (query_type == HostCmd_ACT_GEN_GET) {
ul_temp = get_unaligned_le16(smib->value);
if (data_buf)
*data_buf = ul_temp;
switch (oid) {
case FRAG_THRESH_I:
mwifiex_dbg(priv->adapter, INFO,
"info: SNMP_RESP: FragThsd =%u\n",
ul_temp);
break;
case RTS_THRESH_I:
mwifiex_dbg(priv->adapter, INFO,
"info: SNMP_RESP: RTSThsd =%u\n",
ul_temp);
break;
case SHORT_RETRY_LIM_I:
mwifiex_dbg(priv->adapter, INFO,
"info: SNMP_RESP: TxRetryCount=%u\n",
ul_temp);
break;
case DTIM_PERIOD_I:
mwifiex_dbg(priv->adapter, INFO,
"info: SNMP_RESP: DTIM period=%u\n",
ul_temp);
default:
break;
}
}
return 0;
}
/* This function handles the command response of set_cfg_data */
static int mwifiex_ret_cfg_data(struct mwifiex_private *priv,
struct host_cmd_ds_command *resp)
{
if (resp->result != HostCmd_RESULT_OK) {
mwifiex_dbg(priv->adapter, ERROR, "Cal data cmd resp failed\n");
return -1;
}
return 0;
}
